U.S. Patent 9967096 was awarded to ACCENTURE GLOBAL SOLUTIONS LIMITED on May 08, 2018 and is entitled “Rewritable blockchain.” The first named inventor is Giuseppe Ateniese of Hoboken, NJ. The abstract contains an overview of the patent disclosure:

A system includes circuitry for rewriting blockchains in a non-tamper-evident or tamper-evident operation using a key secret held by a trusted party. The blockchains may include a series of blocks secured by a chameleon hash that may prevent non-tamper-evident rewrites by non-trusted parties that are not in possession of the key secret. Rewrite circuitry of the system may determine randomness data from the chameleon hash and altered data from a rewrite. The randomness data may be written to the randomness field of a block overwritten with the altered data such that the block remains coding-consistent with the chameleon hash and other blocks in the blockchain. Link to Full Patent

This blockchain patent was originally filed on May 16, 2017  as U.S. Patent Application 15/596932 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 9967096. The primary examiner was Darren B Schwartz.

ACCENTURE GLOBAL SOLUTIONS LIMITED, who is the original assignee of this patent, has at least 2272 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 23 times by other U.S. patents according to our law firm research, and can be considered an innovative patent in the field of cryptocurrency and blockchain.

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